Strainer.



S. H. CARBIS.

STRAINER.

APPLICATION FILED APR. 16. 1915.

1,154,175., PatentedSept. 21, 1915.

171 magma,

r Witnesses W 4- j GM lnvencor by 1-1, I V I o Attorneys SAMUEL HENRY carvers, or rannronrr, rEiiNsYLvANIA.

STRAINEB.

Specification Letters Patent.

Patented Sept. 21, 1915.

Application filed A rnie, 1915. Serial at. 21,704.

To all whom it may/concern:

Be it known that I, SAM EL H. Gimme, a citizen of the United States, residing at Freeport, in the county of Armstrong and State of Pennsylvania, have invented a new and useful Strainer, of which the following is a specification.

The present invention appertains to a strainer for the feed water line of a stationary or locomotive boiler, and is adapted particularly for use upon locomotives to filter or strain the water flowing to the 'in-- jector and into the boiler, and whereby the foreign matter may be caught and discharged readily and efliciently.

It is the object of the invention to provide a straining device of novel and improved construction, which is operable to arrest the sediment and the foreign matter to prevent the same from passing on into the boiler, and provided with unique means for enabling the sediment to be discharged.

Another specific object of the invention is the provision of a novel dischargevalve for the casing, and novel means for pressing the valve against its'seat when the valve is closed.

It is also within the scope of the invention to provide a strainer havingthe features above noted, and which is also compara-' tively simple, non-encumbering and inexpensive in construction, as well as being con venient, practical and efficient in its use.

With the foregoing and other objectsin view which will appear as the description proceeds, the invention resides in the'combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the'scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure l is a side elevation of themeproved strainer, a portion of the lift rod be ing broken away. Fig. 2 is a longitudinal section taken on the line 22 of Fig. 1. Fig. 3 is a sectional detail taken on the line 33 of Fig. 1.

In carrying out the invention, there is provided a horizontal cylindrical casing 1, the ends of which are adapted to be attached to the sections of a feed water pipe or line,-

in order that the casing will be mterpose in the feed water pipe. The casing 1 is provided between its ends with a depending integral hopper or pocket 2, which has an outlet spout or portion 3 turned to one side or projecting laterally. The end of the spout 3 is disposed in a vertical plane parallel with the axis of the casing 1, and an annular valve seat 4 is detachably secured within the end of the spout 3, so that the valve seat may be removed and replaced readily.

Theoutlet end of the casing 1 is provided with a concaved seat 5, in which a ring 6 is seated, the ring 6 having a conveXed or curved face 7 bearing against the seat 5, whereby the ring 6 may properly adjust itself when the respective end of the casing 1 is attached to the corresponding pipe section or hose. The ring 6 has an integral annular flange 8, to which a conical straining element 9 is attached. 'The conical straining element 9 is perforated or apertured and projects axially into the casing 1 toward and adjacent the opposite end there of. The butt end of the straining element 9 is provided with an outturned annular flange 10 resting against the flange 8, and secured thereto by means of rivets or other securing elements 11. When the ring 6 is applied to the seat 5, the strainer 9 will be projected or moved into the casing 1 to oocupy its proper position, above the hopper or pocket 2'.

A swinging disk valve 12 is provided for normally closing the outlet spout or portion 3, the valve 12 having an ear 13 projecting from its periphery and pivoted by means of a bolt or other pivot element 1% to the side or wall of the hopper or pocket 2 above one side of the outlet spout 3, and whereby the valve 12 lies in a vertical plane and is adapted to swing in the said plane across the end of the spout 3. The valve 12 is provided opposite the ear 13, with'an arm 15 projecting from its periphery, the arm 15 being located attheopposite side of the spout 3, and has connected thereto a lift rod 16. The lift rod 16 extends upwardly from the arm 15, and is provided at its upper end with a suitable handle 18 which is adapted to be manually raised for opening the valve when desired. he lower end of the rod 16 is pivoted by means of a bolt or other pivot element 17 to the arm 15, and the lift rod 16 may be extended to any suitable point where the rod may be conveniently operated for opening the valves A spring is employed for pressing the valve 12 against the valve seat 4 when the valve is closed, and to this end that side of the spout 3 below the pivot 14 of the valve, is provided with an outstanding lug 19 hav-- ing a bore 20 therethrough parallel with the axis of the spout 3 and the axis of the pivot 14;. A shank 21 is threaded through the bore 20, and is provided with a flattened or cut away portion 22 to be engaged by a set screw 23 threaded into the lug 19, for holding the shank 21 against rotation. The outer end of the shank '21 is provided with a loop 2% which terminates in a spring finger25 bent on a compound curve, and whose free portion is adapted to bear against the outer side or face 26 of the valve 12. The outer side or face 26 of the valve is arranged obliquely relative to the inner side or face of the valve, whereby the valve is of wedgeshape, to wedge between the free end portion of the spring 25 and the valve seat 1, when the valve is swung downwardly to closed position.

The spring finger 25 may be adjusted by loosening the set screw 23 and rotating the shank 21 until the spring finger is brought to the desired position, and in which event, the set screw 23 is again tightened or clamped for holding the shank 21 stationary. The spring finger 25 has its free end lying approximately centrally of the valve seat, and spaced slightly from the plane of the valve seat, whereby when the valve is swung downwardly it may properly wedge between the valve seat and spring finger. The shank 21 and loop 24f. of the spring lie at one side of the spout 3 so as not to inter fere with the sediment and water discharged from the casing.

. In operation, supposing the casing 1 to be interposed in a feed water pipe, such as the feed water connection between a locomotive tender and injector, the water in flowing through the casing 1 will pass through the straining element 9 and sediment or foreign matter carried with the water to the casing 1 will be arrested by the straining element 9, and will precipitate down into the hopper 0r pocket 2. From time to time, the sediment'may be discharged, this being readily accomplished by raising the lift rod 16 Copies of this patent may be obtained for out whenever necessary, and when the rod 16 is released, the weight of the rod and valve Will swing the valve to closed posi tion, and the valve in wedging between the valve seat and spring finger 25 will be seated tightly against the valve seat under the tension of the spring. The lug 19 projects beyond the valve seat to act as a stop to limit the movement of the valve 12 when it is swung to closed position.

The valve 12 in sliding along the valve seat will clean itself, since any matter clinging to the inner face of'the valve will be sheared off by the valve seat. Thespring may be adjusted when necessary, for prop erly holding'the valve 12 seated, and the valve seat may be. reground or replaced whenever essential. The present strainer will operate properly in all seasons, and. will efficiently serve its purpose. The conical straining element 9 is of advantage since it filters the water in a most thorough manner, and is so constructed that the sediment is not liable to clog up the casing.

Having thus described the invention, what is claimed as new is:

In a device of the character described, a

casing having a hopper provided with an outlet spout, the end of the spout having a valve seat, a shank adjustably engaged to the spout and having a loop, the loop terminating in a spring finger cooperating with the valve seat, and a valve pivoted to the hopper to swing in the plane of the valve seat between the valve seat and spring finger, the valve being wedge-shaped to wedge between the valve seat and spring finger.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

SAMUEL HENRY CAR-BIS.

Witnesses:

M. E. KENNEDY, S. M. CORNEL five cents each, by addressing the Commissioner of Patents, 7 Washington, D. G. 

